If one was obsessed enough with these speakers and wanted to try and make improvements there are a few obvious ones that I can recommend. First priority is to get a subwoofer, crossing over to a sub as high as 90Hz can really clean up the sound of the speakers, and will give even more headroom. The second priority would be to add a dome tweeter to the speaker. A stand alone enclosure that sits on top and crosses over to the 901's around 3k with something like a minidsp would fix all of the cone breakup and much of the comb filtering issues. Doing all of this should still leave most of the imaging tricks intact and while it does add considerable cost, there are worse things to do with your money.

Sounds like the best receiver to go with those speakers would be one that comes with new speakers.

Seriously... those look like a nightmare unless you really just love fiddling with your sound setup more than actually listening to music and movies and stuff.

I would imagine anything would drive them just fine, hopefully you have the box that they use to control them. Can't imagine what will happen if you try to run a modern receiver with the room correction stuff. Results will probably be interesting.

Trying to find a home theater receiver that will work with 901 series vi speakers that has HDMI inputs and preamp in and outs. Thank you all in advance

You should pay careful attention to DriverGuru's post in a previous thread about 901's:

Quote:

If you put the EQ after the preamp output you are dealing with a post-volume-control signal. It will likely be many tens of dB down from full output. But the noise from the EQ will remain the same. Therefore it will be more prominent - it will be at a much higher level, relative to the desired signal that it's handling.